Home / 28,659.63-42,963.80-11,125.29

Finding the Fourth Proportional to 28,659.63, 42,963.80 and 11,125.29

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Solution

The fourth proportional to 28,659.63, 42,963.80 and 11,125.29 is: 16,677.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,659.63 : 42,963.80 = 11,125.29 : x
  2. Step 2: Convert to fraction form
    28,659.63/42,963.80 = 11,125.29/x
  3. Step 3: Cross multiply
    28,659.63x = 42,963.80 × 11,125.29
  4. Step 4: Simplify right side
    28,659.63x = 477,984,678.88
  5. Step 5: Solve for x
    x = 477,984,678.88/28,659.63
  6. Step 6: Final answer
    x = 16,677.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.